Super Mario All-Stars gives you four Mario games to choose from: Super Mario Bros., Super Mario Bros. 2, Super Mario Bros. 3, and Super Mario Bros.: The Lost Levels. SMBTLL was really Super Mario Bros. 2 in Japan (SMB2j), previously unreleased because it was thought to be too challenging. The first three games were released for the NES, and are together for the first time on one SNES game pak with improved graphics and sounds. Each game now has four save slots so you can save your progress.

It appears that SMB2 was improved the most. Lush backgrounds and enhanced graphics were added to every part of the game, making it real eye-candy for the jaded SMB veteran. In SMB and SMBTLL, the Mushroom Retainers are animated, and do different things for each level. I found myself going through all the levels to see what they'd do next!

Objectives: SMB1, SMB3, and SMBTLL: Save Princess Toadstool.SMB2: Kill Wart to save the land of Sub-Con.